Synonyms of markedly

2 Syllables
greatly, clearly
3 Syllables
notably, signally, audibly, overtly, patently, frightfully, terribly, obviously, strikingly, horribly
4 Syllables
especially, outstandingly, disturbingly, conspicuously, remarkably, evidently, reputably, severely, manifestly, noticeably, prominently, staggeringly, sonorously, transparently, extremely, appreciably, drastically, decidedly, surprisingly, explicitly
5 Syllables
immeasurably, considerably, incalculably, unaccountably, penetratingly, recognizably, discouragingly, particularly
6 Syllables
uncustomarily, prohibitively